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<head>
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  <title>Document</title>
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    p{
      font-size: 30px;
      color: blue;
      font-family: "隶书";
    }
    h1{
      color:red;
    }
  </style>
</head>
<body>
  <h1>CSS层叠样式</h1>
  <p>用于定义HTML内容在浏览器中的显示样式</p>
</body>
</html>